diff options
| author | Takashi Iwai <tiwai@suse.de> | 2013-01-03 15:25:11 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-01-12 08:43:23 +0100 |
| commit | ee8e765b0b6c9274e255025318cf8da1a3e30d45 (patch) | |
| tree | 18848d00ad22031a21fbd4c98e2f7a212e48f643 /sound/pci/hda/hda_codec.h | |
| parent | 9cc159c6647f505be1205eb5e3fc3b1f84e1d4fd (diff) | |
ALSA: hda - Revive snd_hda_get_conn_list()
Manage the connection list cache using linked lists instead of
snd_array, and revive snd_hda_get_conn_list() again, so that we don't
have to keep the expanded values locally.
This will reduce the stack usage by recursive call of
snd_hda_get_conn_index() or parse_nid_path() of the generic parser.
The list management doesn't include any mutex protection, thus the
caller needs to take care of race appropriately.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_codec.h')
| -rw-r--r-- | sound/pci/hda/hda_codec.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index 9f241d1af38..93ec747ce90 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -831,7 +831,7 @@ struct hda_codec { struct hda_cache_rec amp_cache; /* cache for amp access */ struct hda_cache_rec cmd_cache; /* cache for other commands */ - struct snd_array conn_lists; /* connection-list array */ + struct list_head conn_list; /* linked-list of connection-list */ struct mutex spdif_mutex; struct mutex control_mutex; @@ -944,6 +944,8 @@ snd_hda_get_num_conns(struct hda_codec *codec, hda_nid_t nid) } int snd_hda_get_raw_connections(struct hda_codec *codec, hda_nid_t nid, hda_nid_t *conn_list, int max_conns); +int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid, + const hda_nid_t **listp); int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int nums, const hda_nid_t *list); int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux, |